205311990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{526441}}^1$

素因数の和:526464

約数の個数: 32

約数和(自身を含む): 530653536

約数和(自身を除く): 325341546

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 526441, 1052882, 1579323, 2632205, 3158646, 5264410, 6843733, 7896615, 13687466, 15793230, 20531199, 34218665, 41062398, 68437330, 102655995, 205311990]

約数ペア:

[(1, 205311990), (2, 102655995), (3, 68437330), (5, 41062398), (6, 34218665), (10, 20531199), (13, 15793230), (15, 13687466), (26, 7896615), (30, 6843733), (39, 5264410), (65, 3158646), (78, 2632205), (130, 1579323), (195, 1052882), (390, 526441)]